射影de Sitter宇宙中的CPT对称性
CPT Symmetry in Projective de Sitter Universes
摘要：
在最近的一项工作中，波义耳、芬恩和图罗克假设了一个不违反CPT对称性的宇宙模型，作为暴胀的替代。通过这种方法，他们描述了宇宙从一对宇宙的诞生，一个是另一个的CPT图像，生活在大爆炸之前和之后的时代。CPT不变性严格限制了量子化场的真空态，对宇宙学场景有显著的影响。在这里，我们通过采用古代宇宙学的观点来检验这一提议的有效性，该观点基于德西特投影相对论，并基于事件来解读量子力学，这是古代宇宙的普遍信息库与其通过量子跳跃而脱离平衡态之间关系的结果。在这种情况下，大爆炸是由原始（前）真空相对于代表粒子实际产生的微事件的成核的不稳定性引起的。最后，我们将我们的结果与Turok等人的结果进行比较，包括Volovik研究的大爆炸的解析延拓，并表明这些宇宙学场景的许多方面通过使用我们的方法找到了明确的物理解释。此外，在古老的宇宙框架中，我们不必像在其他宇宙模型中那样先验地假设CPT不变性，而是古老的真空结构和成核过程的必然结果，分为两个镜面宇宙。
英文摘要：
In a recent work, Boyle, Finn and Turok hypothesized a model of universe that does not violate the CPT-symmetry as alternative for inflation. With this approach they described the birth of the Universe from a pair of universes, one the CPT image of the other, living in pre- and post-big bang epochs. The CPT-invariance strictly constrains the vacuum states of the quantized fields, with notable consequences on the cosmological scenarios. Here we examine the validity of this proposal by adopting the point of view of archaic cosmology, based on de Sitter projective relativity, with an event-based reading of quantum mechanics, which is a consequence of the relationship between the universal information reservoir of the archaic universe and its out-of-equilibrium state through quantum jumps. In this scenario, the big bang is caused by the instability of the original (pre)vacuum with respect to the nucleation of micro-events that represent the actual creation of particles. Finally, we compare our results with those by Turok et al., including the analytic continuation across the big bang investigated by Volovik and show that many aspects of these cosmological scenarios find a clear physical interpretation by using our approach. Moreover, in the archaic universe framework we do not have to assume a priori the CPT-invariance like in the other models of universe, it is instead a necessary consequence of the archaic vacuum structure and the nucleation process, divided into two specular universes.
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